Safety circuit for chimney fans

Details Safety circuit for chimney fans Safety circuit for chimney fans

2005-11-01

2005-11-01

Gravini, Stephen (Department: 3749)

Stoves and furnaces

Stove hoods

Reexamination Certificate

active

06959706

ABSTRACT:
A single-phase asynchronous motor with an auxiliary winding in which non-rotation is detected by the absence of an induced voltage across the auxiliary winding when it is briefly disconnected from its power source. Before the detection, the motor is briefly provided with a higher operating voltage.

REFERENCES:
patent: 3643624 (1972-02-01), Eng et al.
patent: 4181099 (1980-01-01), Binstock
patent: 4204832 (1980-05-01), Miller
patent: 4250868 (1981-02-01), Frye
patent: 5513979 (1996-05-01), Pallek et al.
patent: 5555876 (1996-09-01), Francisco et al.
patent: 5568691 (1996-10-01), Rubin
patent: 6205405 (2001-03-01), Pouvreau
patent: 6250133 (2001-06-01), Schell
patent: 6456024 (2002-09-01), Schmider et al.
patent: 101 59 033 (2002-09-01), None

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